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Special Hazard Suppression Flashcards

7 cards from real CFPS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Special Hazard Suppression flashcards as text

  1. Which NFPA standard covers water mist fire protection systems?

    Answer: NFPA 750

    NFPA 750 is the standard for water mist fire protection systems, covering design, installation, testing, and maintenance of all water mist applications.

  2. Water mist systems suppress fires primarily through which combined mechanisms?

    Answer: Cooling of the flame and fuel plus inerting through steam generation

    Water mist extinguishes fires by rapidly absorbing heat from the flame and fuel surface while fine droplets flash to steam, displacing oxygen and reducing radiant heat transfer.

  3. Per NFPA 750, high-pressure water mist systems are defined as systems operating at nozzle pressures:

    Answer: Greater than 500 psi (34.5 bar)

    NFPA 750 classifies water mist systems as low pressure (≤175 psi), intermediate pressure (175–500 psi), and high pressure (>500 psi) based on the distribution system working pressure.

  4. Fire suppression systems installed in spray application booths must comply with which primary standard in addition to any applicable suppression system standard?

    Answer: NFPA 33 (Spray Application Using Flammable or Combustible Materials)

    NFPA 33 governs spray application operations and specifies fire protection requirements for spray booths, including references to applicable suppression system standards based on the hazard.

  5. Clean agent total flooding systems are preferred over CO2 for protecting data centers primarily because:

    Answer: Clean agents are safe for personnel at design concentrations and do not damage equipment

    Clean agents such as FM-200 and Novec 1230 suppress fires at concentrations safe for brief occupant exposure and leave no residue, whereas CO2 at design concentrations is immediately dangerous to life and health.

  6. The room integrity test (door fan test) performed before commissioning a total flooding gaseous suppression system is used to determine:

    Answer: The enclosure leakage area to predict whether agent concentration can be maintained for the required hold time

    The door fan test pressurizes the enclosure to measure equivalent leakage area, which is then used to calculate whether the protected space will retain agent at the design concentration for the required 10-minute hold time.

  7. Suppression systems on marine vessels and offshore platforms must comply with applicable NFPA standards AND which additional regulatory framework?

    Answer: IMO regulations (SOLAS—Safety of Life at Sea)

    Marine and offshore installations must meet International Maritime Organization (IMO) requirements under SOLAS in addition to NFPA standards, as flag-state and classification society rules apply to vessels.